Home / 18,850,816.35-28,276,224.53-12,393,808.20

Finding the Fourth Proportional to 18,850,816.35, 28,276,224.53 and 12,393,808.20

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Solution

The fourth proportional to 18,850,816.35, 28,276,224.53 and 12,393,808.20 is: 18,590,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,850,816.35 : 28,276,224.53 = 12,393,808.20 : x
  2. Step 2: Convert to fraction form
    18,850,816.35/28,276,224.53 = 12,393,808.20/x
  3. Step 3: Cross multiply
    18,850,816.35x = 28,276,224.53 × 12,393,808.20
  4. Step 4: Simplify right side
    18,850,816.35x = 350,450,103,382,986.06
  5. Step 5: Solve for x
    x = 350,450,103,382,986.06/18,850,816.35
  6. Step 6: Final answer
    x = 18,590,712.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.